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Contents
- The climate of Somersworth
- The Best Time to Visit Somersworth
- The Worst Time to Visit Somersworth
- Spring Weather in Somersworth
- Summer Weather in Somersworth
- Autumn Weather in Somersworth
- Winter Weather in Somersworth
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Somersworth
Applying the Köppen climate classification, Somersworth belongs in the category of Dfb, which defines it as a humid continental region without a dry season and warm summers. Located in the northern hemisphere in the state of New Hampshire in the United States. In broad terms, Somersworth experiences wide temperature variations throughout the year, with the mercury swinging from around 17.4°F (-8.1°C) in the coldest month to highs of 78.3°F (25.7°C) in the peak of the summer months.
This variation is balanced with relatively steady relative humidity averaging around 78-82%. The precipitation is fairly well-distributed throughout the year, ranging from a low of 1.5" (38mm) in September to highs of 3.11" (79mm) found in late autumn and early winter. As for snowfall, the winter months see a significant increase with 6.26" (159mm) recorded in January and December. An interesting pattern to note is the lack of snowfall from May to September.
When it comes to daylight, there is a marked difference as one moves from the short 9.4 hours found in January to the extended 15.3 hours of sunshine seen in June. This is welcomed by an increase in the number of sunshine hours, which reach a maximum of 10.4 hours per day in August. Conversely, the UV index remains consistently lower throughout the year, predominantly falling between 2 to 3.
This variation is balanced with relatively steady relative humidity averaging around 78-82%. The precipitation is fairly well-distributed throughout the year, ranging from a low of 1.5" (38mm) in September to highs of 3.11" (79mm) found in late autumn and early winter. As for snowfall, the winter months see a significant increase with 6.26" (159mm) recorded in January and December. An interesting pattern to note is the lack of snowfall from May to September.
When it comes to daylight, there is a marked difference as one moves from the short 9.4 hours found in January to the extended 15.3 hours of sunshine seen in June. This is welcomed by an increase in the number of sunshine hours, which reach a maximum of 10.4 hours per day in August. Conversely, the UV index remains consistently lower throughout the year, predominantly falling between 2 to 3.
The Best Time to Visit Somersworth
For visitors intending to experience the best of Somersworth's weather, the optimal timing would be from late spring through to early summer, corresponding to the months of May through July. During this time, average temperatures range from a pleasing 52°F (11.1°C) to a high of 78.3°F (25.7°C). The relative humidity remains somewhat steady, ensuring a pleasant experience. Furthermore, daylight is the lengthiest around this period, maximising the opportunity to explore Somersworth's charm.
The Worst Time to Visit Somersworth
Tourists are likely to find the conditions from December to February least appealing. The temperatures fall sharply during these winter months, recording lows of 17.4°F (-8.1°C) and reaching a high of just 32.5°F (0.3°C). Coupled with the reduced daylight hours hovering around 9 to 10 hours and an increased probability of snowfall, the outdoor activities may be more restrictive.
Spring Weather in Somersworth
Spring in Somersworth, encompassing March to May, witnesses a steady rise in temperatures from 39.7°F (4.3°C) to 63.1°F (17.3°C). At the same time, rainfall registers around 2.48" (63mm) in March before reducing to 2.13" (54mm) in May. Despite the rainfall, the humidity drops slightly during this time, creating an overall comfortable environment.
Summer Weather in Somersworth
Summers in Somersworth, beginning in June and ending in August, are relatively warm with temperatures peaking at around 78.3°F (25.7°C). The rainfall remains relatively unchanged, however, hovering around 2" (51mm). A significant feature of the summer is the extended daylight hours, with the longest day stretching to 15.3 hours in June, making it ideal for outdoor activities.
Autumn Weather in Somersworth
Autumn in Somersworth, running from September to November, is marked by a drop in temperature, moving from 69.6°F (20.9°C) to 46°F (7.8°C). Interestingly, the decrease in temperature is accompanied by a rise in rainfall, from 1.5" (38mm) in September to 2.83" (72mm) in November. The number of daylight hours also decreases during this season.
Winter Weather in Somersworth
Winter in Somersworth is characterized by low temperatures, ranging from 35.6°F (2°C) in December to as low as 17.4°F (-8.1°C) in January. This period sees an increase in snowfall, with the highest snowfall of 6.69" (170mm) in December. Despite the cold and snowy conditions, the number of daylight hours range from 9 to 9.7, providing enough light to navigate the winter landscape.
Weather in January
January in Somersworth, New Hampshire is characterized by the cold and snowy conditions that define a typical New England winter. This is the coldest month with the lowest temperatures hitting 17.4°F (-8.1°C) and the snowflakes don't hold back either, falling for about 10.4 days. Weather in January »
Weather in February
February in Somersworth brings some relief, albeit minimal, from January's punishing cold. Average temperatures begin a slow climb from 17.4°F (-8.1°C) to 18.9°F (-7.3°C) even as the number of snowfall days decreases from 10.4 to 8.6, heralding the approaching end of winter. Weather in February »
Weather in March
With the arrival of March, Somersworth experiences a mild thaw in weather conditions. The temperatures take a promising turn towards the warmer side, surging from 18.9°F (-7.3°C) to 26.1°F (-3.3°C). The end of the long winter period brings with it the magic of budding flowers and chirping birds, though chilly gusts of wind can still be felt. Weather in March »
Weather in April
April sees a drastic change in Somersworth's weather as signs of spring unambiguously announce their presence. The temperatures hover between a frost-melting 36.3°F (2.4°C) to a gentle 52°F (11.1°C). Pops of colour from blooming flora are seen around the city, enhancing the beauty of this lovely period. Weather in April »
Weather in May
May ushers in one of Somersworth's most delightful periods. The previously crisp temperatures of 36.3°F (2.4°C) become a fading memory, as the mercury rises to a comfortable 46.2°F (7.9°C). It's a time where the city truly starts to shake off the drab hues of winter, and blossoms in a spectacle of vibrant colours. Weather in May »
Weather in June
With the arrival of June, Somersworth fully ushers in the summer season. The city thermo keeps rising from May's 46.2°F (7.9°C) to bask in the tepid warmth of 54°F (12.2°C) as June unfolds. Days prolong to yield the year's longest daylight hours, typically filled with the mirth of summer activities. Weather in June »
Weather in July
July in Somersworth is characterised by the full arrival of summer with the city experiencing its warmest month. The mercury reaches a peak, clocking in at a summer-high of 78.3°F (25.7°C). This is a time that invites residents to bask in the warmth of the sun, enjoying a range of outdoor activities. Weather in July »
Weather in August
The weather in August in Somersworth is a continuation of the city's quintessential summer. High temperatures hover marginally lower than July, falling modestly to 77.4°F (25.2°C) from the previous high of 78.3°F (25.7°C). Despite the slight decrease, the city remains alive and vibrant, revelling in the warmth of the season. Weather in August »
Weather in September
In September, Somersworth witnesses the transition from summer to fall. The city enjoys its last spell of relatively warmer weather, transitioning from the highs of August's 77.4°F (25.2°C) with the mercury slipping to a mellow 69.6°F (20.9°C). Weather in September »
Weather in October
October in Somersworth brings with it the full blush of the fall season. Cool breezes replace the formerly higher temperatures of 69.6°F (20.9°C) with a cozier 57.9°F (14.4°C), giving rise to the phenomenon of "sweater weather". Weather in October »
Weather in November
Winter begins to knock on Somersworth's door in November. Temperatures take a much colder turn to averages around 33.4°F (0.8°C) from the mild 57.9°F (14.4°C) experienced in October. With the arrival of November, the city begins to prepare for the festive season, as buildings are adorned with lights and streets echo with jovial music. Weather in November »
Weather in December
Somersworth experiences the full brunt of winter in December. From highs of 33.4°F (0.8°C) in November, temperatures drop significantly, plunging to a chilly average low of 24.6°F (-4.1°C). Against the backdrop of a crisp winter sky, chimneys puff away, offering a stark contrast to the winter's cold. Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Somersworth?
With its average high temperature of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C), January is regarded as the coldest month.
What are the most humid months in Somersworth?
The months with the highest humidity in Somersworth, New Hampshire, are January and February, with an average relative humidity of 82%.
How many days does it rain in Somersworth?
In Somersworth, New Hampshire, during the entire year, the rain falls for 143.1 days and collects up to 29.06" (738mm) of precipitation.
When does it snow in Somersworth?
Months with snowfall are January through May, October through December.
How many days does it snow in Somersworth?
In Somersworth, during the entire year, snow falls for 40 days and aggregates up to 27.8" (706mm) of snow.
When is the lowest UV index in Somersworth?
The months with the lowest UV index in Somersworth are January through March, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Somersworth?
With an average of 4.7h of sunshine, February has the least sunshine of the year in Somersworth, New Hampshire.
When is Daylight Saving Time (DST) in Somersworth?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the least humid month in Somersworth?
April is the least humid month in Somersworth, with an average relative humidity of 75%.
When it does not snow in Somersworth?
In Somersworth, snow does not fall in June through September.
When are the longest days in Somersworth?
The month with the longest days in Somersworth is June, with an average of 15h and 18min of daylight.
What time of the year is the hottest in Somersworth?
The warmest time of the year in Somersworth is July, with temperatures averaging a high of 78.3°F (25.7°C) and a low of 60.3°F (15.7°C).
What are the months with the highest UV index in Somersworth?
July and August, with an average maximum UV index of 6, are months with the highest UV index in Somersworth, New Hampshire.
What month has the most sunshine in Somersworth?
August has the most sunshine of the year, with an average of 10.4h of sunshine.
What is the driest month in Somersworth?
September is the month with the least rainfall in Somersworth. Rain falls for 11.8 days and accumulates 1.5" (38mm) of precipitation.
What is the wettest month in Somersworth?
The wettest months are October and December, with an average 3.11" (79mm) of rainfall.
What is the snowiest month in Somersworth?
The month with the most snowfall is December, when snow falls for 7.2 days and typically aggregates up to 6.69" (170mm) of snow.
What is the month with the shortest days in Somersworth?
With an average of 9h and 0min of daylight, December has the shortest days of the year in Somersworth, New Hampshire.
Average temperature
Somersworth, NH
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure
Somersworth, NH
- Average pressure in January:
29.99"Hg - Average pressure in February:
29.98"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Somersworth, NH
- Average wind speed in January:
9.3mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.7mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Somersworth, NH
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).
Average rainfall
Somersworth, NH
- Average rainfall in January:
2.28" - Average rainfall in February:
2.17" - Average rainfall in March:
2.48" - Average rainfall in April:
2.87" - Average rainfall in May:
2.13" - Average rainfall in June:
2.52"
- Average rainfall in July:
2.05" - Average rainfall in August:
2.01" - Average rainfall in September:
1.5" - Average rainfall in October:
3.11" - Average rainfall in November:
2.83" - Average rainfall in December:
3.11"
The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Somersworth, NH
- Average rainfall days in January:
7.6 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
10 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).
Average snowfall
Somersworth, NH
- Average snowfall in January:
6.26" - Average snowfall in February:
6.26" - Average snowfall in March:
4.65" - Average snowfall in April:
2.09" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Somersworth, NH
- Average snowfall days in January:
10.4 days - Average snowfall days in February:
8.6 days - Average snowfall days in March:
8.8 days - Average snowfall days in April:
2.2 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
7.2 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Somersworth, NH
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 4min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 1min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Somersworth, NH
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
13.9 days
- Average sunshine days in July:
15 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
15 days - Average sunshine days in November:
16.9 days - Average sunshine days in December:
16.1 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).
Average UV index
Somersworth, NH
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Somersworth, NH
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Somersworth, NH
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Somersworth, New Hampshire, USA
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